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CVE-2021-38496

Quick assessment

Affected
Mozilla Thunderbird
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox MessageTask 存在资源管理错误漏洞，该漏洞源于在对MessageTasks进行操作期间，任务可能已在其仍处于计划状态时被删除，从而导致内存损坏和可能被利用的崩溃。

AI Predicted 5.5 Difficulty: Moderate EPSS 1.59% · P73

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth
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I. Basic Information for CVE-2021-38496

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Mozilla Firefox MessageTask 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox MessageTask 存在资源管理错误漏洞，该漏洞源于在对MessageTasks进行操作期间，任务可能已在其仍处于计划状态时被删除，从而导致内存损坏和可能被利用的崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mozilla Thunderbird unspecified ~ 78.15 -
Mozilla Firefox ESR unspecified ~ 91.2 -
Mozilla Firefox unspecified ~ 93 -

II. Public POCs for CVE-2021-38496

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III. Intelligence Information for CVE-2021-38496

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Vendor Advisories for CVE-2021-38496 (7)

Mailing List Discussions for CVE-2021-38496 (1)

Same Patch Batch · Mozilla · 2021-11-03 · 14 CVEs total

CVE-2021-38502 Mozilla Thunderbird 安全漏洞
CVE-2021-38501 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-38500 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-38499 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-38498 Mozilla Firefox 资源管理错误漏洞
CVE-2021-38497 Mozilla Firefox 访问控制错误漏洞
CVE-2021-38495 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-38494 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-38493 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-38492 Mozilla Firefox 输入验证错误漏洞
CVE-2021-38491 Mozilla Firefox 权限许可和访问控制问题漏洞
CVE-2021-29993 Mozilla Firefox 权限许可和访问控制问题漏洞
CVE-2021-29991 Mozilla Firefox和Mozilla Thunderbird 安全漏洞

IV. Related Vulnerabilities

Same product: Thunderbird
Same vendor: Mozilla

V. Comments for CVE-2021-38496

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